<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>404 - 页面未找到</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-color: #222;
            color: #fff;
        }
        .container {
            text-align: center;
        }
        h1 {
            font-size: 6em;
            margin: 0;
        }
        p {
            font-size: 1.5em;
        }
        @keyframes neon {
            0% { text-shadow: 0 0 10px #fff, 0 0 20px #00f, 0 0 30px #0ff; }
            50% { text-shadow: 0 0 20px #fff, 0 0 30px #00f, 0 0 40px #0ff; }
            100% { text-shadow: 0 0 30px #fff, 0 0 40px #00f, 0 0 50px #0ff; }
        }
        h1 {
            animation: neon 1.5s infinite alternate;
        }
        img {
            width: 300px;
            height: auto;
            margin-top: 20px;
        }
    </style>
</head>
<body>
<div class="container">
    <h1>404</h1>
    <p>哎呀！这个页面好像不见了...</p>
    <img src="https://www.nasa.gov/wp-content/uploads/2024/05/53703001014-35be712015-k.jpg?resize=1536,933" alt="宇宙图像">
</div>
</body>
</html>
